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Lost my schema.rb! Can it be regenerated?
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If you run a rake -T it will list all possible rake tasks for your Rails project. One of them is db:schema:dump which will recreate the schema.rb for the Rails app from the database.
bundle exec rake db:schema:dump
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Monad in plain English? (For the OOP programmer with no FP background)
... * 2); }
then the corresponding function on Nullable<int> can make all the operators and calls in there work together "in the same way" that they did before.
(That is incredibly vague and imprecise; you asked for an explanation that didn't assume anything about knowledge of functional compo...
What's the best manner of implementing a social activity stream? [closed]
...a social activity stream (Facebook is the most famous example). Problems/challenges involved are:
13 Answers
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How to style readonly attribute with CSS?
... selector catches the presence of readonly regardless of the value. Technically false is invalid according to specs, but the internet is not a perfect world. If you need to cover that case, you can do this:
input[type="text"]:read-only:not([read-only="false"]) { color: blue; }
textarea works the ...
Can't install nuget package because of “Failed to initialize the PowerShell host”
All of a sudden, I am getting this error when upgrading Nuget packages. None of the fixes that I have come across work. I am using Visual Studio 2013.
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Implications of foldr vs. foldl (or foldl')
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@Desty because it produces new part of its overall result on each step -- unlike foldl, which collects its overall result and produces it only after all the work is finished and there are no more steps to perform. So e.g. foldl (flip (:)) [] [1..3] == [3,2,1], so scanl (f...
Analyze audio using Fast Fourier Transform
...efficients you get out will be imaginary numbers even though your input is all real values. In order to get the amount of power in each frequency, you need to calculate the magnitude of the FFT coefficient for each frequency. This is not just the real component of the coefficient, you need to calcul...
.NET Global exception handler in console application
...ots of technologies to run in different threads. For example, the Task Parallel Library (TPL) has its own way to catch unhandled exceptions. So, saying this doesn't work for all situations is kind of ludicrous, there is NO one place catch-all for everything in C#, but depending on the technologies...
Using Laravel Homestead: 'no input file specified'
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Instead of reinstalling try
vagrant up --provision
or
homestead up --provision
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Example use of “continue” statement in Python?
...n job will be stopped and you only be able to know that the next day, it really helps a lot in those case, Yes we can write send mail feature on exception but still the execution will be stopped.
– Snehal Parmar
Mar 10 '16 at 7:21
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